Author: Christophe Theron
Date: 10:03:32 01/19/00
Go up one level in this thread
On January 18, 2000 at 18:21:24, Vincent Diepeveen wrote:
>On January 18, 2000 at 16:30:15, Christophe Theron wrote:
>
>>On January 18, 2000 at 10:32:51, Enrique Irazoqui wrote:
>>
>>>I noticed that sometimes Tiger keeps playing the same losing opening lines. In
>>>the match Tiger-Hiarcs, games 6 and 10 are D10 openings, identical until 14...
>>>e6, where Hiarcs shows an evaluation of 0.82 from its point of view. Tiger lost
>>>them both. Games 17 and 19 were A45 lines that immediately out of book Hiarcs
>>>evaluated as 0.57 in its favor. Again, Tiger lost both games. It seems that
>>>there is a learner problem that will allow Tiger to play repeatedly the same
>>>losing lines.
>>
>>
>>You are right Enrique. This is not a bug, I would rather call it a design flaw.
>>
>>I have written a simple learning algorithm because I did not want to invest too
>>much time in it. In fact I had almost no time to invest, so I have done my best
>>in a very tight schedule.
>>
>>My philosophy has always been to put my efforts on the real stuff: the engine
>>itself.
>>
>>But I'll have to work harder on the learning system, because as you have heard
>>recently, Junior6 is badly taking advantage of this (I have heard it has
>>repeated TWELVE TIMES the same won opening in one of the SSDF matches). :(
>
>Perhaps get a wider tournament book?
>
>If you play 4 different
>openings moves, then there is already little chance that
>out of a match of 40 games you get 12 times the same first move.
>
>If you can play several moves at move 2, 3 or 4
>then chance gets again smaller.
>Etcetera.
You are right, that's what I would like: a wider opening book.
>Perhaps talk with Jeroen a bit?
That's what I'm going to do. I want more variety, that's always what I wanted
anyway.
Christophe
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